Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1c2882af4ac6981…

MALICIOUS

PDF

42.4 KB Created: 2020-08-25 23:33:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1ae09f607619555ab71969a6ba113d6 SHA-1: 021c28ad692425aab6a974c754b303bd3598d938 SHA-256: c1c2882af4ac6981f737601e1ac29e94e7a5bede50369df6924d6194888ac93b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector pointing to 'ttraff.com'. The document body, though partially corrupted, contains the same URL and appears to be an attempt at SEO poisoning or a lure for malicious content. The presence of numerous external PDF links further supports the SEO poisoning angle.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=roddy+ricch+feed+tha+streets+2+mp3+download In PDF document text
    • http://files.dtlaclean.com/uploads/1/3/0/7/130775808/29137.pdfIn PDF document text
    • http://tebola.warwickpics.com/uploads/1/3/1/4/131406436/bojaseri-xalisejazo-tumozaf-buxozoda.pdfIn PDF document text
    • http://files.jc-engineering-solutions.com/uploads/1/3/2/6/132682106/mixosiwe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/88352796336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/91827548593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/tibuzadoxazodumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6106/7427/files/types_of_toxicants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0776/1819/files/visobuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/30267826499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/30184788104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0173/0456/files/fases_de_la_enfermedad_de_alzheimer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/absceso_periodontal_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1525/5710/files/96559877758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4944/1687/files/zoxeliwavovisuzanonin.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: jc-engineering-solutions.com 4 samples

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5435 5892 bytes
SHA-256: 5b1dcc5e8c96fc01af5a8bf52a44f83733894afc5980127016381f68d613c50b
font_01_sfnt_off0000683d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x683D 15964 bytes
SHA-256: 3ef5b55da1fb167f0a64152e4f60ec302bbdc030d4548cfed4c73ccae6521e99

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